Add Table::saveMany().

This allows saving multiple records in a transaction.

src/ORM/Table.php

@@ -1618,6 +1618,32 @@ protected function _update($entity, $data)
         return $success;
     }
 
+    /**
+     * Saves multiple records for a table.
+     *
+     * @param array $entities Entities to save.
+     * @param array $options Options used when calling Table::save() for each entity.
+     * @return bool|array False on failure, entities list on succcess.
+     */
+    public function saveMany($entities, $options = [])
+    {
+        $return = $this->connection()->transactional(
+            function () use ($entities, $options) {
+                foreach ($entities as $entity) {
+                    if ($this->save($entity, $options) === false) {
+                        return false;
+                    }
+                }
+            }
+        );
+
+        if ($return === false) {
+            return false;
+        }
+
+        return $entities;
+    }
+
     /**
      * {@inheritDoc}
      *